fix: reverse Toolbox header orientation

src/styles.css

@@ -690,38 +690,6 @@ main {
   margin-bottom: 0.5rem;
 }
 
-.portal-header .toolbox-shell__personalize-popover {
-  width: min(26rem, calc(100vw - 1.5rem));
-  max-height: calc(100vh - 5.5rem);
-  overflow: auto;
-}
-
-.preferences-content {
-  padding: 0.35rem;
-  color: var(--toolbox-text, var(--text));
-}
-
-.preferences-heading {
-  margin-bottom: 0.9rem;
-}
-
-.preferences-content h2 {
-  margin: 0;
-  font-family: Inter, Avenir, 'Segoe UI', sans-serif;
-  font-size: 1rem;
-  letter-spacing: -0.025em;
-}
-
-.portal-header .preferences-kicker {
-  margin: 0 0 0.3rem;
-  padding: 0;
-  color: var(--toolbox-accent, var(--brand));
-  font-size: 0.68rem;
-  font-weight: 750;
-  letter-spacing: 0.1em;
-  text-transform: uppercase;
-}
-
 .help-steps {
   display: grid;
   gap: 0.85rem;
@@ -750,44 +718,6 @@ main {
   font-size: 1.3rem;
 }
 
-.theme-choice {
-  margin: 1rem 0;
-  padding: 0;
-  border: 0;
-}
-
-.theme-choice legend {
-  margin-bottom: 0.6rem;
-  color: var(--muted);
-  font-size: 0.78rem;
-  font-weight: 700;
-  text-transform: uppercase;
-}
-
-.theme-choice > div {
-  display: grid;
-  grid-template-columns: repeat(3, 1fr);
-  gap: 0.45rem;
-  padding: 0.35rem;
-  border-radius: 0.75rem;
-  background: var(--surface-soft);
-}
-
-.theme-choice button {
-  padding: 0.62rem;
-  border: 0;
-  border-radius: 0.5rem;
-  background: transparent;
-  cursor: pointer;
-}
-
-.theme-choice button.is-selected {
-  background: var(--surface);
-  color: var(--brand);
-  box-shadow: 0 2px 8px rgba(20, 30, 60, 0.09);
-  font-weight: 700;
-}
-
 .preference-summary {
   display: grid;
   grid-template-columns: repeat(3, 1fr);
@@ -846,15 +776,6 @@ main {
   font-size: 0.78rem;
 }
 
-.portal-header .inline-warning {
-  margin: 0 0 0.75rem;
-  padding: 0.7rem 0.8rem;
-  border-radius: 0.6rem;
-  background: color-mix(in srgb, var(--danger) 8%, var(--surface));
-  color: var(--danger);
-  font-size: 0.82rem;
-}
-
 .visually-hidden {
   position: absolute !important;
   width: 1px !important;